An image of London taken from the International Space Station, about 240 miles above the Earth, on 2nd February, 2013. Writes Expedition 34 flight engineer Chris Hadfield – an astronaut with the Canadian Space Agency: “London, on the Thames, from the city to the encircling motorway. Heathrow very visible on the (west).” North is at the bottom of the image, making west on the right in this image. As well as the M25, the winding River Thames can be clearly seen cutting through the city centre. PICTURE: NASA